Elevators can be installed with a single front entrance or with an additional side or back entrance supplement. From the smallest utility dumbwaiter to wide freight elevators, one can find the dimensions for the elevator doors.
Residential Elevators
Homes with 20 square feet to spare can be fitted with a residential elevator, according to G.C.E. Residential Elevators, a manufacturer of custom elevators. Doors can be installed in the front as well as added on the side or back of the elevator. The standard door size is 36 inches wide. However, its height is dependent on the cab size. G.C.E. offers three cab heights--6 feet 8 inches, 7 feet and 8 feet.
LULA Elevators
Limited Use Limited Access elevators, or LULA, are used in office buildings, public facilities and other non-residential establishments. Although public facilities are required to provide handicap access to the public, LULA elevators do not meet the requirements of the ADA, or American with Disabilities Act. According to Executive Residential Elevators, LULA elevators have a standard size of 42 inches by 54 inches. Elevator Concepts makes LULA elevators whose door dimensions are 36 inches by 80 inches.
Dumbwaiters
Dumbwaiters are utility elevators that can be installed in homes and commercial buildings. Some older homes were built with dumbwaiters to transport laundry between multiple floors. Hotels often have dumbwaiters to transport food and laundry between floors as well. Homecare Suppliers provides dumbwaiters whose door sizes come in three sizes--18 inches by 18 inches, 22 inches by 22 inches and 28 inches by 28 inches.
Freight Elevators
Freight elevators are used in factories, warehouses, airports and other huge storage and manufacturing facilities. These elevators come in varying sizes and with one or double entrances. Bramalea Elevator manufactures freight elevators of varying classes. It's smallest freight elevator, the B1000 series, is supported by doors ranging from 34.5 inches by 84 inches to 46.5 inches by 84 inches. It's largest freight elevator, the B10000 series, is supported by doors ranging from 68 inches by 84 inches to 92 inches by 84 inches.